Welcome to EDAboard.com

Welcome to our site! EDAboard.com is an international Electronic Discussion Forum focused on EDA software, circuits, schematics, books, theory, papers, asic, pld, 8051, DSP, Network, RF, Analog Design, PCB, Service Manuals... and a whole lot more! To participate you need to register. Registration is free. Click here to register now.

Register Log in

Drawn current from a two and single supply Class B power amplifier

paulmdrdo

Full Member level 3
Joined
Jan 17, 2014
Messages
175
Helped
1
Reputation
2
Reaction score
1
Trophy points
18
Activity points
1,365
I was reading a section from a book that talks about class B amplifier. I don't quite understand what the author meant in the highlighted part. Can someone help me picture what the author is trying to convey? I know what full-wave and rectified signals are but I can't quite connect it to what the book is saying.
2020-05-29 15_03_04-Robert L. Boylestad, Louis Nashelsky - Electronic Devices and Circuit Theory.png2020-05-29 15_05_14-Robert L. Boylestad, Louis Nashelsky - Electronic Devices and Circuit Theory.png
 

srizbf

Advanced Member level 5
Joined
Apr 3, 2010
Messages
1,995
Helped
417
Reputation
840
Reaction score
328
Trophy points
1,363
Activity points
10,985
In single supply the same supply supplies current for both half of circuit.
In dual supply , each supply supply current only for that part of the waveform.
 

paulmdrdo

Full Member level 3
Joined
Jan 17, 2014
Messages
175
Helped
1
Reputation
2
Reaction score
1
Trophy points
18
Activity points
1,365
In single supply the same supply supplies current for both half of circuit.
In dual supply , each supply supply current only for that part of the waveform.
In your first statement, isn't one half of the circuit turned off every one complete cycle? Therefore it just would be like a half-wave rectified signal?
 

srizbf

Advanced Member level 5
Joined
Apr 3, 2010
Messages
1,995
Helped
417
Reputation
840
Reaction score
328
Trophy points
1,363
Activity points
10,985
Each half will be amplifying for the respective half cycle.
 

paulmdrdo

Full Member level 3
Joined
Jan 17, 2014
Messages
175
Helped
1
Reputation
2
Reaction score
1
Trophy points
18
Activity points
1,365
Each half will be amplifying for the respective half cycle.
Yes. That would be the same with the dual supply right? Therefore the current drawn has also the form of halfwave rectified signal not full-wave?
 

Toggle Sidebar

Part and Inventory Search


Welcome to EDABoard.com

Sponsor

Sponsor

Design Fast


×
Top